Transducer heating for reliable use even in cold conditions

Transducer heating for use in cold conditions

Transducer heater for reliable use in cold conditions

To prevent icing on the front surface and ensure reliable measurement even at temperatures close to and below freezing, we equip our ultrasonic transducers with optional transducer heating. The heating element prevents the transducer from freezing and prevents the accumulation of frost, snow, and ice. For many of our customers in the field of anemometry, the installation of heating is now standard equipment.

Reliable wind measurement under extreme conditions

Measuring devices on wind turbines are often exposed to extreme environmental conditions, especially in mountainous regions or offshore wind farms. These areas are subject to high wind speeds, heavy precipitation, snowfall, and freezing temperatures. Such conditions can significantly impair the functionality of sensitive components such as ultrasonic transducers.

Our integrated heating solution reliably protects the transducer from frost and moisture. It prevents critical parts from freezing and ensures that measurements remain accurate even at sub-zero temperatures. Even in the most adverse weather conditions—from storms to snowfall—the heating system enables continuous and reliable wind measurement. For operators, this means less downtime, greater safety, and maximum efficiency in energy production.

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Heating technology in practical testing: Snowfall shows the difference

In the following experiment, on November 29, 2023, two identical SC031 transducers, one without heating (left) and one with heating (right), were installed in an anemometer on an outdoor test bench and electrically connected. After the first snowfall, a clear difference in the surface condition of the two samples can already be seen. While the snow accumulates in the area without heating, it thaws directly on the transducer with heating. It is also noticeable that the heating not only warms the transducer, but also a larger area around it.

Outdoor test proves: heating function ensures reliable performance

Over the course of a week and after further snowfall with sustained temperatures between -9°C and 0°C, the difference between the two samples becomes even more apparent. While the transducer without heating is covered by a layer of snow several centimeters thick, the transducer with heating has melted away a larger area of snow. This enables continued reliable measurement and the above-mentioned reliable protection against icing and covering of the front surface.

Do you also need a heater? Talk to us.

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